Flexible photographic cartridge-film.



" No. 888,818 PATENTE) APR. '7, 1808.

P. W. LOVEJOY.

FLEXIBLE/PHOTOGRAPH() CARTRIDGE FILM. APPLICATION FILED v8.1.8, 1908.RBNEWBD 00T. 5, 19o?.

6, Z. l www" .Mm y f.. 8.. IIIHMIHHW mm I move relatively to the film,inasmuch as the paper is in that case retarded by the board or supportwith which the paper is in contact.

Fig. 8 illustrates the film with its protective opaquematerial woundupon an ordinary flanged spool in the usual manner. c a are the flangesof the spool.A t b represent the black paper which is wrapped about,therefore inclosing and protecting the sensitized film in the usualmanner. c is an ordinary confining paster to prevent the black pa erfrom unwinding.

t will be noted that owing to the above stated construction andarrangement of the parts the rear end of the film is' attached to theopaque material even while on the stock spool and is thereby controlledby it, and. yet,`

- owing to the peculiar construction of the attaching means, the rearend of the film is permitted all needful independent movement, and,further, that when the film hasfbeen exposed it may be convenientlydeveloped in such an apparatus as the McUurdy developing-box, becausethe attachment of the film a to the opaque material will give the lattercontrol over the former and curlin In ig. 4 I illustrated a constructionin which that part of the opaque material which is o posite the film issomewhat longer than the lm, includingthe means of its attachment to theopaque material, this resulting from the manner of windingr the film andpaper on the spool and applying the connection C as the last operation,so that when the film is stretched the opaque material will be slack, asshown, which slackhowever, will be taken up during the winding of bothtogether ron a spool. This form is sometimes preferred, because therebythe `formation of the folds or plaits in the piece D is avoided, yet theessential feature of the control of.' the film by the o aque material ispresent.

It will be c ear to those who are familiar with `this art that manydepartures may be made from the details of the s ecific exam lesillustrated and described y me and stil the` essential features of theinvention be present. l therefore do not limit myself to such detailsnor to the said specific examples.

l. ln a cartridge-film f'oi photographic v)urposes the combination of astrip of' f exile o )aque material, a strip of sensitized filinattaelhed at one end to the opaque material, and another ieee ofinatei'ial attached at one part tothe lin and at another part to theopaque material, the whole being wound upon a spool ready for insertionin a camera. and adapted for exposure therein.

prevent its 2. In a cartridge-film for photogra hic purposes thecombination of a strip of exile opaqlue material, alstrip of sensitizedfilm attache( at oneend to the opaque material, and another ieee ofmaterial attached at one edge to the ilm and at the opposite edge to thelopaque material and having a section between the two attached edges notattachedv to anything.

3. ln a cartridge-film for photogra hie purposes-the combination ofastrip of exile and opaque material and astri Aof sensitized filmattached at both en s to the opaque material, the length of the filmbetween the points of attachment to the opaque material being less thanthat of the opaque material between the same points, so that when thefilm is stretched, the opaque niaterial will be slack.

4. In a cartridge-film for photogra hic purposes the combination of astri of exile o aque material, a strip of sensitized'film fixed yattached at one end to the opaque material, and another piece ofmaterial attached at one edge to the end of the film and at its otheredge'to the opa ue material and having asection between t e two attachededges not attached to anything the arran ement ot the film and itsattaching means re ative to the opaque material being such, thatwhen-the film and its attaching means are stretched, the opaque materialopposite the film will be slack.

5. ln a Acartridge-film for photogra hic purposes the combination ofastri of exile o aque material, a strip of sensitized film fixedyattached at one end to the opaque material and movably attached theretoat the other end by means adapted to be lon itudinally pushed togetheror collapsed by movement of the film longitudinally of 'the' opaquematerial during the winding operation.

6. A fiexible hotographic film and a strip of black paper iionger thanthe film, means whereby one end oi the film is attached to the black paer and at the other end likewise attache( thereto in such manner that ithas longitudinal movement relative thereto.

7. In a cartridge film for photogra hie nirposes, the combination of astrip of exible opaque material, a strip of sensitized film shorter thanthe opaque strip and attached at one end to the o aque material andastrip of material relative y inoie flexible than the filin, attached tothe rear end of the latter.

FRANK W. LOVEJOY.

Witnesses:

(}..Wii.i.Anii Rien, lCLizAiiic'in i. Arbitron.

